Revert of [Invalidation Tracking] Trace StyleInvalidator setNeedsStyleRecalc

Revert of [Invalidation Tracking] Trace StyleInvalidator setNeedsStyleRecalc (patchset #7 id:120001 of https://codereview.chromium.org/580373002/)

Reason for revert:
Regressed blink_perf.css

Original issue's description:
> [Invalidation Tracking] Trace StyleInvalidator setNeedsStyleRecalc
> 
> This patch adds a set of trace events to track reason when
> StyleInvalidator invokes Node::setNeedsStyleRecalc. One of the trace events is guaranteed to be issued before StyleInvalidator issues setNeedsStyleRecalc on the node. The trace events come with InspectorStyleInvalidatorInvalidateEvent, which contains inspector node id, human readable reason string, and optionally the tagName/id/class/attr/invalidationList involved.
> 
> This is to be used from devtools so we post process and find the StyleInvalidator trace event on the given node to see the detailed reason for why StyleInvalidator decided issue setNeedsStyleRecalc on the node.
> 
> BUG=410701
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=183177

TBR=pdr@chromium.org,caseq@chromium.org,yurys@chromium.org
BUG=410701, 420105
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=183227

[kouhei (in TOK), 2014-10-04 04:39:04]

Created Revert of [Invalidation Tracking] Trace StyleInvalidator
setNeedsStyleRecalc

[kouhei (in TOK), 2014-10-04 04:39:24]

The CQ bit was checked by kouhei@chromium.org

[commit-bot: I haz the power, 2014-10-04 04:39:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/624133003/1

[kouhei (in TOK), 2014-10-04 04:40:36]

kouhei@chromium.org changed reviewers:
+ vivianz@chromium.org

[pdr., 2014-10-04 04:44:44]

lgtm

[commit-bot: I haz the power, 2014-10-04 05:43:34]

Committed patchset #1 (id:1) as 183227